Martha Socorro Marin Dies from BB Gunshot

A Santa Ana man claims he accidentally shot and killed his girlfriend of 14 years, the same woman who bore him two children.

The weapon: a BB gun.

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Santa Ana Police were called to 32-year-old Martha Socorro Marin's home around 11:45 a.m. Thursday and discovered she was unconscious with a small wound in her upper chest.

Paramedics performed CPR, but she later died at UCI Medical Center in Orange.

The unidentified, 34-year-old man of the guesthouse--the couple lived in a structure at the back of her parents' property--told cops he accidentally shot her with a BB rifle. No arrests have been made so far, but the investigation continues, with hopes the autopsy will provide some answers.